It has to be stupid

Whether the toy makers realize it or not the key to getting their toys played with is to make the toy as easy to use as possible. This ease of use does not just mean things like easy insertion of a sensor as Dexcom has done with the G6 or Abbott has done with the Libre. It goes beyond not having to calibrate either of these sensors. When it comes to increasing the use of insulin it means making dosing insulin as stupid as possible. Take all the decisions out of the hands of the patient.